Ensure Bonjour Advertising Services Is Disabled

НискаНиво 2Аутоматскаmacos

Опис

Bonjour is an auto-discovery mechanism for TCP/IP devices which enumerates devices and services within a local subnet. DNS on macOS is integrated with Bonjour and should not be turned off, but the Bonjour advertising service can be disabled. Bonjour can simplify device discovery from an internal rogue or compromised host. An attacker could use Bonjour's multicast DNS feature to discover a vulnerable or poorly- configured service or additional information to aid a targeted attack. Implementing this control disables the continuous broadcasting of "I'm here!" messages. Typical end-user endpoints should not have to advertise services to other computers. This setting does not stop the computer from sending out service discovery messages when looking for services on an internal subnet, if the computer is looking for a printer or server and using service discovery. To block all Bonjour traff...

Како се проверава

Метод провере: Команда љуске

shell

/usr/bin/osascript -l JavaScript <<'EOS'
$.NSUserDefaults.alloc.initWithSuiteName('com.apple.mDNSResponder').objectForKey('NoMulticastAdvertisements').js
EOS

Очекивани излаз: true

Како се исправља

Метод исправке: Смерница или закрпа инфраструктуре

Terminal Method: Run the following command to disable Bonjour Advertising services: % /usr/bin/sudo /usr/bin/defaults write /Library/Preferences/com.apple.mDNSResponder.plist NoMulticastAdvertisements -bool true Profile Method: Create or edit a configuration profile with the following information: 1. The PayloadType string is com.apple.mDNSResponder 2. The key to include is NoMulticastAdvertisements

Својства

Оперативни системи: macos-14
Ознаке: macossonoma
Референца: CIS Apple macOS 14.0 Sonoma Benchmark v3.1.0 - 4.1 Ensure Bonjour Advertising Services Is Disabled

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shell

tmaegis scan --target macos --level 2